linux-kernel - [PATCH AUTOSEL 6.12 098/107] Bluetooth: Add new quirks for ATS2851

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Message-ID: <20241124133301.3341829-98-sashal@kernel.org>
Date: Sun, 24 Nov 2024 08:29:58 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Danil Pylaev <danstiv404@...il.com>,
	Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
	Sasha Levin <sashal@...nel.org>,
	marcel@...tmann.org,
	johan.hedberg@...il.com,
	luiz.dentz@...il.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	linux-bluetooth@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 098/107] Bluetooth: Add new quirks for ATS2851

From: Danil Pylaev <danstiv404@...il.com>

[ Upstream commit 94464a7b71634037b13d54021e0dfd0fb0d8c1f0 ]

This adds quirks for broken extended create connection,
and write auth payload timeout.

Signed-off-by: Danil Pylaev <danstiv404@...il.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/net/bluetooth/hci.h      | 14 ++++++++++++++
 include/net/bluetooth/hci_core.h | 10 ++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index bab1e3d7452a2..4f64066915beb 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -300,6 +300,20 @@ enum {
 	 */
 	HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT,
 
+	/*
+	 * When this quirk is set, the HCI_OP_LE_EXT_CREATE_CONN command is
+	 * disabled. This is required for the Actions Semiconductor ATS2851
+	 * based controllers, which erroneously claims to support it.
+	 */
+	HCI_QUIRK_BROKEN_EXT_CREATE_CONN,
+
+	/*
+	 * When this quirk is set, the command WRITE_AUTH_PAYLOAD_TIMEOUT is
+	 * skipped. This is required for the Actions Semiconductor ATS2851
+	 * based controllers, due to a race condition in pairing process.
+	 */
+	HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT,
+
 	/* When this quirk is set, MSFT extension monitor tracking by
 	 * address filter is supported. Since tracking quantity of each
 	 * pattern is limited, this feature supports tracking multiple
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 88265d37aa72e..94ddc86849733 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1871,8 +1871,8 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 			   !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
 
 /* Use ext create connection if command is supported */
-#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
-
+#define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
+	!test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
 /* Extended advertising support */
 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
 
@@ -1885,8 +1885,10 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
  * C24: Mandatory if the LE Controller supports Connection State and either
  * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
  */
-#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
-					 ext_adv_capable(dev))
+#define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
+					 ext_adv_capable(dev)) && \
+					 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
+						 &(dev)->quirks))
 
 /* Periodic advertising support */
 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
-- 
2.43.0